Global Patent Index - EP 1764476 A3

EP 1764476 A3 20111116 - Hybrid blisk for a gas turbine and method of manufacture

Title (en)

Hybrid blisk for a gas turbine and method of manufacture

Title (de)

Zweikomponenten-Blisk für eine Gasturbine und Verfahren zu dessen Herstellung

Title (fr)

Rotor intégral hybride pour turbine à gaz et procédé de fabrication

Publication

EP 1764476 A3 20111116 (EN)

Application

EP 06254485 A 20060829

Priority

US 16262405 A 20050916

Abstract (en)

[origin: EP1764476A2] A rotor assembly or "blisk" for a gas turbine engine includes a metallic hub (12) having an annular flow-path surface (14), and at least one blade (16) extending outwardly from the flow-path surface (14). The blade includes a metallic body (18) having a first density. The metallic body (18) defines a shank portion (22) and an airfoil portion (20) having opposed pressure and suction sides, and is integral with the hub (12). An insert (36) having a second density less than the first density is carried by the body (18), and the insert (36) and the body (18) collectively define an airfoil shape. A method is also provided for manufacturing a rotor assembly.

IPC 8 full level

F01D 5/14 (2006.01); F01D 5/16 (2006.01); F01D 5/28 (2006.01); F01D 5/34 (2006.01)

CPC (source: EP US)

F01D 5/16 (2013.01 - EP US); F01D 5/34 (2013.01 - EP US); F05D 2230/232 (2013.01 - EP US); F05D 2230/236 (2013.01 - EP US); F05D 2300/43 (2013.01 - EP US); F05D 2300/603 (2013.01 - EP US); F05D 2300/612 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1764476 A2 20070321; EP 1764476 A3 20111116; CN 1932248 A 20070321; CN 1932248 B 20130206; JP 2007085339 A 20070405; JP 5134225 B2 20130130; US 2007065291 A1 20070322; US 7334997 B2 20080226

DOCDB simple family (application)

EP 06254485 A 20060829; CN 200610153962 A 20060915; JP 2006249240 A 20060914; US 16262405 A 20050916